Eye Surgery TRIZ Cases

A helical ocular implant reshapes Schlemm's canal to facilitate aqueous humor drainage.

Vacuum feedback triggers automatic switching between longitudinal and transversal cutting modes, reducing manual intervention and heat introduction.

A magnetostrictive ultrasonic handpiece generates longitudinal and torsional motion through a laminated stack and acoustic impedance transformer.

Footswitch pedal position generates output signals to control ultrasonic power and pulse-duty ratio in surgical apparatuses.

A surgical mapping tool translates optical coherence tomography data to en face images.

Segmented cannula curvature navigates ocular anatomy to deliver viscoelastic fluid precisely while maintaining surgical efficiency.

A rotatable connecting unit secures a fluid hose to an ophthalmic cassette while allowing axial rotation.

Offset ridges and tapered channels reduce pulsations in ophthalmic surgery pumps, ensuring stable fluid delivery.

Periodic action reduces retinal phototoxicity during vitreoretinal surgery by synchronizing high-frequency light pulses with camera exposure times.

A hydraulically-driven intra-ocular lens insertion tool uses a fluid piston to advance the lens, eliminating sudden force spikes that damage eye tissue.

Elastomeric valve boss stretches over a through-hole to create a concentric seal that remains closed without applied force.

Real-time IOP feedback adjusts irrigation flow and aspiration vacuum to prevent anterior chamber collapse caused by post occlusion surge events.

A lens delivery handpiece uses a ball lock ring to switch between pushing and turning plunger advancement.

A prosthetic capsular device provides a stable platform for intraocular lens placement within the eye.

A control unit adjusts vacuum levels using a flow sensor to manage aspiration dynamics.

Pneumatic pressurization via a regulated valve maintains stable fluid pressure without complex electronic control loops.

A disposable ultrasonic handpiece uses a cobra work tip and external fluid routing to transmit vibration energy for cataract surgery.

Piezoelectric stick-slip adapters standardize tip distance to compensate for patient head movements during retinal surgery.

A disposable secondary cassette acts as a reservoir to protect reusable primary surgical cassettes from fluid contamination during vitrectomy procedures.

Unified device structure merges positioning and injection mechanisms to resolve accuracy versus complexity trade-offs while minimizing procedural trauma.

A surgical fixation tool uses a needle with sloped support surfaces to stabilize the eye during ophthalmic procedures.

Smart intraocular pressure valve regulates eye fluid to enable precise biometry measurements during surgery.

A connector for intraocular lenses changes diameter to pass through sclerectomies and secure the implant.

A diathermy needle device with a retractable aspiration shaft enables simultaneous cauterization and debris removal through a single entry point.

An active valve glaucoma drainage device manages intraocular pressure using a controller and multiple pressure sensors.

A method predicts final intraocular lens optical properties using pre-established time profiles and early surgical measurements.

Stabilizer immobilizes the injection needle during subretinal delivery, reducing manual handling errors and preventing retinal tearing.

Stabilization channels in the blade holder engage head protrusions to constrain movement, resolving cutting imprecision during corneal flap creation.

A polyether block amide irrigation sleeve provides superior stiffness and flexibility for ophthalmic insertion.

Two-step profile formation creates ophthalmologic device heads with precise arm geometry, eliminating misalignment defects from conventional bending.

Internal pneumatic valves in the vitrectomy probe form a displacement pump that manages vitreous humor flow to reduce retinal traction during cutting.

A pressure control system estimates central retinal artery critical closing pressure from systemic blood pressure to adjust infusion rates.

Curved tip edge geometry thickens the insertion tube circumferential section to suppress fracture during miniaturization.

Transconjunctival needle placement anchors intraocular implants without scleral slits, reducing bleeding and trauma.

A corneal microshunt device diverts aqueous humor from the anterior chamber to the corneal surface.

An elastic porous implant placed in the sclera drains fluid to lower pressure while avoiding corneal endothelium damage.

A flexible expandable phacoemulsification tip shortens axially and expands radially to enhance lens fragment aspiration.

A flexible intraocular lens injection device uses a rotary storage shuttle to insert and expel lenses without manual handling.

A flexible ocular infusion system uses coiled silicone tubing to maintain intraocular pressure during eye surgery.

A surgical handpiece with a rotatable inner cylinder and locking device creates multiple cutting edges by aligning openings with the outer window.

Stimulating peripheral retinal fibers via eccentric fixation addresses neglected midbrain connections, enhancing balance and spatial orientation.

A controller stabilizes intraocular pressure using real-time sensor readings and estimated flow values.

A glaucoma drainage device uses a control element to regulate fluid flow through a posterior segment implant.

An underlid device uses electrodes to stimulate the sclera and trigger reflex tear production for dry eye management.

Recessed terminal portions identify irrigation ports and inhibit eye tissue adherence during cortex removal.

A glaucoma drainage implant uses a biodegradable semi-permeable membrane to regulate aqueous humor flow through the device.

Resistive heating fuses irregular capsular tears into a smooth perimeter, preventing radial extension and vitreous intrusion.

A camera-based apparatus transforms surgical parameters across sessions using six-degree-of-freedom eye motion compensation.

A self-clearing valve mechanism within an intraocular drainage tube expands its fluid flow path to restore aqueous humour movement.

Segmented tip protectors prevent damage to fragile cutting instruments, maintaining precision without permanent assembly complexity.